Improvement in variable eooentric



T. KEELER 8: G. S. AVERY. VARIABLE 3003177310 MOTION.

No. 77,197. Patented Apr. 28, 1868.

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TIMOTHY KEELER AND GEORGE S. AVERY, OF DANBURY, CONNECTICUT.

Letters Patent No. 77,197, dated April 28, 1868.

IMPROVEMENT IN EOOBNTRIC.

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Be it known that we, Tmo'rnv KEELEB and GEORGE S. AVERY, of Danbury, in the county of Fairfield, and State of Connecticut, have invented a new and improved Oscillating or Variable Eccentric-Motion; and we do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the art to'make and use the samc, reference being had to'the accompanying drawings, forming part of this specification. g v

This invention relates to an improvement in applying the eccentric-motion to various purposes, whereby thcjuses to which the eccentric-motion is adapted are greatly increased. 7

And the invention consists in such an arrangement. that one or more eecentric-rods may be connected 1 with the eccentric, and be given a longitudinal motion at angles varying with the motion of the eccentric-throw, as will be'hereinaftermore fully described.

Figure 1 represents a side elevation of our eccentric, with a single red coniiected with the eccentric-band in such a manner that the rod is allowed to oscillate or vary from the eccentric in its line of motion.

Figure 2 is a top or plan view ofthe'same, showing, also, the manner in which a second or a third rod may be connected with the eccentric, and be made to very or oscillate the same as the first mentioned.

Similar letters of reference'indicete corresponding parts.

A represents the eccentric, which maybe formed of separate plates or pieces, leaving a groove for an entireeccentric-band, as in the drawing, or in the ordinary manner, with the band in two segments, bolted together. B is the eccentricband, which is'confined in the groove of the eccentric, C is the rod.

The ba'ndB has a stud or prcjectingplate, D, upon one side, to which the rod-band is attached. This stud or ploteD projects, as seen in fig. 1, so that the jaws'e e of the open hand (to which the red C is attached) are secured thereto, as seen in the drawing.

F is the rod-hand. The bolt g, which secures the jaws e of the band F to the eccentric-band, as seen in the drawing, forms a pivot, upon which the vba'nd turns, and the rod is made to swing or oscillate each or either way from the line of motion of the eccentric. v

Other rods may be attached to the plate D oi the eccentric-band, which will have the same varying or oscillating motion as. indicated by the rod shown in red in fig. 2.

H represents a simple support for the eccentric-rod.

I is the eccentric-shaft.

J represents the stands which support the shaft.

For sawing marble, and for sawing wood.of tapering or angular form, and fcr.many other purposes, as, for instance, driving two or more pumps from the same eccentric, the advantages of the arrangement will he at once apparent.

We do not confine ourselves to the particular method shown in the drawing for attaching our eccentricrod or rods to the eccentric-band, but, as far as our experience extends, the-method we have shown is the best.

Having described our invention, we claim as new, and desire to secure by-Letters Patent- Connecting the rod C to the eccentric, A, whereby an oscillating motion is imparted to the rod 0, varying from a line at right angles with the eccentric-shaft, and without varying the throw of the eccentric, as herein shown and described.

TIMOTHY KEELER, GEORGE S. AVERY.

Witneseesz' Dsvm G. Pmmnn, DAVID B. Boonv. 

